This page explains how Michael Zhang (USATT# 89100)'s rating went from 2217 to 2209 at the $5000 Nittaku Ohio Open held on 20 Jan 2023 - 21 Jan 2023. The links below take you to pages that describe various aspects of the rating processor.

The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.